>But, I think this trend might lead to extremely hard to read code, and there is a good chance that this hard-to-read code will be treated as some black box/voo

>But, I think this trend might lead to extremely hard to read code, and there is a good chance that this hard-to-read code will be treated as some black box/voodoo. This already happens with metaprogramming in C++. See e.g. the source of the Boost Preprocessor library. Circle just makes this code a bit easier to read. Even code using the library: compare the compile-time Duff's device generation in https://www.boost.org/doc/libs/1_72_0/libs/preprocessor/doc/examples/duffs_device.c https://www.boost.org/doc/libs/1_72_0/libs/preprocessor/doc/... to that in https://github.com/seanbaxter/circle/blob/master/examples/README.md#duffs-device https://github.com/seanbaxter/circle/blob/master/examples/RE... .